Phospholipid studies of marine organisms: New branched fatty acids fromStrongylophora durissima
- 1 October 1984
- Vol. 19 (10) , 768-776
- https://doi.org/10.1007/bf02534470
Abstract
The phospholipids of the spongeStrongylophora durissima were analyzed. The major phospholipids present were phosphatidylethanolamine (PE), phosphatidylcholine (PC), phosphatidylserine (PS), phosphatidylglycerol (PG) and phosphatidylinositol (PI). The major fatty acid components of the phospholipids consisted of short chain (C14−C19) and very long chain (C25−C30) “Demospongic” acids. Three novel branched Δ5 monounsaturated acids,Z‐19‐methyl‐5‐pentacosenoic,Z‐19‐methyl‐5‐hexacosenoic andZ‐19‐methyl‐5‐heptacosenoic acids were encountered in the sponge. The 3‐saturated counterparts of these compounds, 19‐methylpentacosanoic, 19‐methylhexacosanoic and 19‐methylheptacosanoic acids, as well as 19‐methylpentacosanoic and 20‐methyloctacosanoic acids also are hitherto undescribed acids present in the sponge. Trace amounts of 2 very long chain acids also were detected and their structures tentatively assigned as 19,21‐dimethylheptacosanoic and 20,22‐dimethyloctacosanoic acids. The distribution of these fatty acids according to phospholipid head groups also was described.This publication has 24 references indexed in Scilit:
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